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IV64749: ASSERTION FAILURE DURING JVM STARTUP WHEN USING AN EXISTING SHAR ED CLASS CACHE WITH -XSHARECLASSES OPTION

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: ASSERTION FAILED at CompositeCache.cpp:3860(line
    number may slightly vary across releases)
    .
    Stack Trace:
    SH_CompositeCacheImpl::unprotectHeaderReadWriteAreaSH_CompositeC
    acheImpl::doUnlockCacheSH_CompositeCacheImpl::exitWriteMutexSH_C
    ompositeCacheImpl::startupSH_CacheMap::startupj9shr_initJ9VMDllM
    ainrunJ9VMDllMainpool_dorunInitializationStageprotectedInitializ
    eJavaVMj9sig_protectinitializeJavaVMJNI_CreateJavaVM
    .
    

Local fix

  • Clear the shared class cache using -Xshareclasses:destroy option
    

Problem summary

  • This problem is caused when a JVM exits unexpectedly while
    updating data in shared class cache. Due to abnormal
    termination, the shared class cache is left unusable though the
    data in the cache is still in consistent state. This causes
    another JVM attempting to use the same shared class cache to
    assert during startup.
    

Problem conclusion

  • The JVM has been updated to recover from such conditions and
    startup properly using the existing shared class cache.
    .
    This APAR will be fixed in the following Java Releases:
       6 R1 SR8 FP2   (6.1.8.2)
       7 R1 SR2       (7.1.2.0)
       6    SR16 FP2  (6.0.16.2)
       7    SR8       (7.0.8.0)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, Java maintenance is available
    from:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV64749

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-09-09

  • Closed date

    2014-09-09

  • Last modified date

    2014-09-09

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R260 PSY

       UP

  • R270 PSY

       UP

  • R600 PSY

       UP

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Document Information

Modified date:
21 February 2022